Constant selectivity receiver,申请号US19310506877-传众专利搜索

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发明名称	Constant selectivity receiver
摘要
申请公布号	US2189308(A)	申请公布日期	1940.02.06
申请号	US19310506877	申请日期	1931.01.06
申请人	RADIO CORPORATION OF AMERICA	发明人	BRADEN RENE A.
分类号	H03J3/06	主分类号	H03J3/06
代理机构		代理人
主权项
地址

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